CN106681739B - Automatic intelligent contract generation method - Google Patents
Automatic intelligent contract generation method Download PDFInfo
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- CN106681739B CN106681739B CN201710018799.0A CN201710018799A CN106681739B CN 106681739 B CN106681739 B CN 106681739B CN 201710018799 A CN201710018799 A CN 201710018799A CN 106681739 B CN106681739 B CN 106681739B
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Abstract
The invention discloses an automatic generation method of an intelligent contract, which aims at the similarity of intelligent contracts used in the same industry or similar industries, wherein certain fixed characteristics exist, the fixed characteristics are extracted according to the idea of code multiplexing, a data structure and corresponding code segments are compiled, and the code segments are stored in a code database. The automatic intelligent contract generating method can greatly save manpower, material resources and time cost by utilizing the intelligent contract template, and can be applied to all intelligent contracts with similarity, such as transaction history contracts, stock contracts, asset contracts and the like.
Description
Technical Field
The invention belongs to the technical field of intelligent contracts, and particularly relates to an automatic generation method of an intelligent contract.
Background
Contracts refer to the common compliance of two or more parties in transacting a business in order to determine their respective rights and obligations. The traditional contracts are recorded on paper after being consistent through the discussion of a desktop conference. Over the years of development, "contracts" have formed their own concepts and principles.
In the traditional contract, people firstly make a contract in an interview form and reach a agreement, the contract is recorded on paper, and both contract parties sign on the paper; the execution process of the contract consists of a plurality of control protocols, and the control protocols comprise two parts: the record such as the form, the bill and the like is saved, and the record is audited and negotiated, and the record audited and negotiated often needs the participation of a third party, so that the status between the contracting parties is not equal; the execution efficiency of the contract can only be guaranteed by law and force. These control protocols have accumulated over the course of years of precipitation. Although the cost of the control protocol is high, it is a fundamental guarantee that we remain cooperative in an untrusted environment. In the execution process of the contract, the recorded auditing is not only high in cost, but also low-efficiency manual completion is required, so that people often reduce the cost by sampling auditing.
The introduction of technologies such as computer, internet, and cryptography should reduce the labor cost and computational cost of trading in contract making, protocol control and performance guarantee. In 1997, Nick Szabo introduced the concept of "intelligent contracts": intelligent contracts embed contract terms in software and hardware, and promote contract execution through a protocol and a user interface, which is the key for forming a secure and digital relationship in the internet. He presented three important properties of intelligent contracts in "modeling and Securing Relationships on Public Networks": observability, verifiability and access control. Observability refers to the ability of the contract itself to be observed with the contract execution process; verifiability means that both the procedure and the decision performed by the contract can be verified; access control means that the contract itself and the information related to the contract are only accessible to the relevant contracting parties, and that the relevant information is exposed to a third party review in case of conflict.
By comparing smart contracts with traditional contracts, the advantages of smart contracts can be seen: firstly, the traditional contract needs to negotiate and write in a form of a desktop protocol, and the intelligent contract can form an intelligent contract with a contract party authentication signature through the Internet and a digital signature technology; meanwhile, the execution process of the conventional contract is composed of many control protocols, and the control protocol includes two parts: the method is characterized in that records such as forms and bills are saved, and also recorded auditing and negotiation are performed, and the recorded auditing and negotiation often need to be participated by a third party, so that the status between contract parties is not equal easily, the cost of the third party is needed, the observability and verifiability of the contract and the execution process of the contract are ensured by the combination of a password protocol and a user interface of the intelligent contract, and the labor cost and the calculation cost of a control protocol are reduced.
Therefore, the intelligent contract not only has larger functions and stronger vitality than the traditional 'paper' contract, but also reduces the manual cost and the calculation cost of the transaction in contract making, protocol control and performance guarantee. Meanwhile, the method also forms a digital society prime force army and plays an indispensable important role. In this view, the potential for development of intelligent contracts is enormous.
Due to the immature technology, the development of intelligent contracts is slow, and until 2013, Ethereum proposes a block chain with a built-in turing complete programming language, and the intelligent contracts can be realized on the block chain, so that the research of the intelligent contracts enters a new stage. A blockchain is a verifiable, unalterable replicated distributed database. The blockchain has two important components: transactions and blocks. The transaction records not only the operation of changing the state of the database, but also the carrier of using the authority of the database; the block is a record of the time and sequence of transaction verification. The blockchain records all transactions, and the verifiability of the blockchain is guaranteed. The correctness of the transaction and the block mainly lies in the establishment of the system to the standard, and the validity judgment standard of the transaction lies in the actual need; since the blockchain is a replicated database, the validity determination of the blocks determines the irreparability and consistency of the blockchain and the security of the system. Meanwhile, the blockchain with the built-in turing-complete programming language can automatically execute the rules stored in the blockchain, so that the intelligent contract can be realized by using the blockchain.
With the development of the blockchain technology, the number of intelligent contracts on the blockchain is increased, a large number of similar or even repeated intelligent contracts are necessarily existed, and if the intelligent contracts need to be rewritten every time, certain labor and time costs are required.
Disclosure of Invention
In order to save manpower, material resources and time cost, the invention provides an automatic generation method of an intelligent contract, which aims at the problem that the intelligent contracts used in the same industry or similar industries are similar, wherein certain fixed characteristics exist, the fixed characteristics are extracted according to the idea of code reuse, a data structure and corresponding code segments are compiled, and the code segments are stored in a code database. When the intelligent contract automatic generation system is used for generating contracts, the required intelligent contract template, the required attributes and the required method are selected to automatically generate the contracts.
An automatic generation method of an intelligent contract comprises the following steps:
firstly, establishing a template base by adding an intelligent contract template according to the existing intelligent contract, and keeping updating the template base; the intelligent contract template comprises function description, attribute codes and method codes;
then, searching the template base according to the related attribute code of the required intelligent contract to obtain the corresponding intelligent contract template and automatically generating the required intelligent contract according to the template.
The specific process of adding the intelligent contract template is as follows: for any existing intelligent contract, decomposing the intelligent contract into an attribute code and a method code; then, an empty intelligent contract template is newly established, the attribute codes and the method codes obtained by decomposition are directly endowed to the intelligent contract template, corresponding function descriptions are added, and the intelligent contract template is stored in a template library.
The specific process of updating the template library is as follows: for a new intelligent contract, decomposing the new intelligent contract into an attribute code and a method code, and comparing the new intelligent contract with each intelligent contract template in a template library:
if the template library has an intelligent contract template, the attribute codes of which are consistent but the method codes of which are inconsistent with the new intelligent contract comparison attribute codes, the method codes of the intelligent contract template are all replaced by the method codes of the new intelligent contract;
if the template library has an intelligent contract template, the attribute codes of which are not completely consistent with the attribute codes compared with the new intelligent contract, namely the intelligent contract template does not have the individual attribute codes of the new intelligent contract, the individual attribute codes and the related method codes thereof are added into the intelligent contract template, and the corresponding function description is updated.
The specific implementation process of searching the template library and generating the intelligent contract is as follows: firstly, searching a template library according to related attribute codes of a required intelligent contract:
if the template library has an intelligent contract template with all attribute codes of the required intelligent contract, selecting related attribute codes and related method codes from the intelligent contract template to automatically generate the required intelligent contract;
if the template library has an intelligent contract template which has most of the attribute codes of the required intelligent contract and only lacks individual attribute codes, selecting relevant attribute codes and relevant method codes from the intelligent contract template to automatically generate a corresponding intelligent contract, further supplementing the lacking individual attribute codes and relevant method codes into the intelligent contract, finally obtaining the required intelligent contract and updating the intelligent contract template by utilizing the intelligent contract;
if the template base does not have related intelligent contract templates, writing corresponding intelligent contracts according to related attribute codes and method codes of the needed intelligent contracts, and adding the corresponding intelligent contract templates to the template base by using the written intelligent contracts and storing the intelligent contract templates in the template base.
Based on the technical scheme, the automatic intelligent contract generation method can greatly save manpower, material resources and time cost by utilizing the intelligent contract template, and can be applied to all intelligent contracts with similarity, such as transaction history contracts, stock contracts, asset contracts and the like.
Drawings
Fig. 1 is a schematic view of an update process of an intelligent contract template according to the present invention.
Fig. 2 is a schematic flow chart of the automatic generation of the intelligent contracts.
Detailed Description
In order to more specifically describe the present invention, the following detailed description is provided for the technical solution of the present invention with reference to the accompanying drawings and the specific embodiments.
The embodiment uses the intelligent contract automatic generation system to generate the intelligent contract, and when generating the contract, the contract can be automatically generated by selecting the required intelligent contract template, the attribute and the method; the intelligent contract template contains a function description and attribute code and method code.
The intelligent contract automatic generation system used in the embodiment has the following functions:
1. adding a new intelligent contract template: adding a new intelligent contract template according to the intelligent contract; the increasing method comprises the following steps: decomposing the intelligent contract into attribute codes and method codes, then combining the attribute codes and the method codes into an intelligent contract template, adding function description, and finally storing the intelligent contract template in a database.
2. Updating the existing intelligent contract template: updating the existing intelligent contract template according to the intelligent contract; the updating method comprises the following steps: decomposing the intelligent contract into attribute codes and method codes, comparing the attribute codes and the method codes with the attribute codes and the method codes in the intelligent contract template, and updating the method codes into the template if the related attribute codes exist in the intelligent contract template but the related method codes are different; if the individual attribute code does not exist in the intelligent contract template, the attribute code and the related method code thereof are added into the intelligent contract template, the function description is updated, and finally the function description is saved in the database.
3. Deleting the existing intelligent contract template: the existing intelligent contract template is deleted from the database.
4. And (3) displaying the intelligent contract template: the method comprises the steps of displaying the function description of the intelligent contract template and the attribute and method names, and providing check boxes to select the attribute and the method without directly displaying the corresponding code slice.
5. Automatically generating an intelligent contract: and according to the selected intelligent contract template and the attribute and method name selected in the check box, taking the substitute sheet from the database, automatically combining to generate the intelligent contract, and returning the intelligent contract to the user.
The user may use the above-described intelligent contracts to automate the generation system via the Web or otherwise. There are customers in many fields, so we will describe the template updating and contract generating process of the intelligent contract automatic generation system in detail by the example of automatically generating Customer intelligent contract:
(1) initially, the intelligent contract automated generation system is template-free. Company X first needs a Customer intelligent contract and needs to compile an intelligent contract for the Customer. The intelligent contract written for Customer has the following attribute codes: CustID, CustName, CustAddress; the method code comprises: getCust ID (), getCustName (), getCustAddress (), updateCustID (_ CustID), updateCustName (_ CustName), updateCustAddress (_ CustName), and updateCustAddress (_ CustAddress).
(2) The written Customer smart contract template is used for updating the existing smart contract template of the system, but the used smart contract template B is set to be null because the Customer is not automatically generated from the template.
(3) And calling a subprogram to update the intelligent contract template, wherein the input parameters are the intelligent contract A and the intelligent contract template B, and the process is shown in FIG. 1. When the intelligent contract template B is empty, generating a blank intelligent contract template B; otherwise, skip. Decomposing attribute codes and method codes in the intelligent contract A, and updating the intelligent contract template B by using the attribute codes and the method codes, wherein the updating method comprises the following steps: comparing the attribute codes and the method codes obtained by decomposing the intelligent contract A with the attribute codes and the method codes in the intelligent contract template B, and replacing the method codes in the intelligent contract template B with the method codes of the intelligent contract A if the attribute codes are consistent and the method codes are inconsistent; and if the individual attribute codes of the intelligent contract A do not exist in the intelligent contract template B, adding the attribute codes and corresponding method codes into the intelligent contract template B.
(4) Company Y needs a Customer intelligent contract, relevant attribute codes comprise CustID, CustName, CustAddress and CustTel, and method codes relevant to the attribute codes are needed. Through searching, as shown in fig. 2, the Customer contract template B is found to already exist in the system. Then, the company Y only needs to select the attribute codes CustID, CustName, and custadress according to the template B, and then select the method codes getCustID (), getCustName (), getcustadress (), updateCustID (_ CustID), updateCustName (_ CustName), updatecustadaddresss (_ custadress), and the like. Then, the system automatically generates the intelligent contract C, but the attribute code custesttel and the corresponding method code are absent in the intelligent contract C, and the attribute code custesttel and the method code getcustesttel (), updatecustesttel (_ custesttel) need to be added into the intelligent contract C to obtain the intelligent contract D. And (3) because the new intelligent contract D system does not have a corresponding intelligent contract template, the intelligent contract template B in the system needs to be updated, and the step (3) is carried out to update the intelligent contract template, wherein the input parameters are the intelligent contract D and the intelligent contract template B.
The steps (1) to (3) do not involve automatic generation of intelligent contracts, and intelligent contract templates are added and updated; and (4) automatically generating an intelligent contract by using the existing intelligent contract template, and then updating the intelligent contract template.
The embodiments described above are presented to enable a person having ordinary skill in the art to make and use the invention. It will be readily apparent to those skilled in the art that various modifications to the above-described embodiments may be made, and the generic principles defined herein may be applied to other embodiments without the use of inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.
Claims (1)
1. An automatic generation method of an intelligent contract is characterized in that:
firstly, establishing a template base by adding an intelligent contract template according to the existing intelligent contract, and keeping updating the template base; the intelligent contract template comprises function description, attribute codes and method codes;
then, searching a template library according to the related attribute codes of the required intelligent contracts to obtain corresponding intelligent contract templates and automatically generating the required intelligent contracts according to the templates;
the specific process of adding the intelligent contract template is as follows: for any existing intelligent contract, decomposing the intelligent contract into an attribute code and a method code; then, a hollow intelligent contract template is newly built, attribute codes and method codes obtained by decomposition are directly endowed to the intelligent contract template, corresponding function descriptions are added, and the intelligent contract template is stored in a template library;
the specific process of updating the template library is as follows: for a new intelligent contract, decomposing the new intelligent contract into an attribute code and a method code, and comparing the new intelligent contract with each intelligent contract template in a template library:
if the template library has an intelligent contract template, the attribute codes of which are consistent but the method codes of which are inconsistent with the new intelligent contract comparison attribute codes, the method codes of the intelligent contract template are all replaced by the method codes of the new intelligent contract;
if the template library has an intelligent contract template, the attribute codes of which are not completely consistent with the attribute codes compared with the new intelligent contract, namely the template library does not have the individual attribute codes of the new intelligent contract, the individual attribute codes and the related method codes thereof are added into the intelligent contract template, and the corresponding function description is updated;
the specific implementation process of searching the template library and generating the intelligent contract is as follows: firstly, searching a template library according to related attribute codes of a required intelligent contract:
if the template library has an intelligent contract template with all attribute codes of the required intelligent contract, selecting related attribute codes and related method codes from the intelligent contract template to automatically generate the required intelligent contract;
if the template library has an intelligent contract template which has most of the attribute codes of the required intelligent contract and only lacks individual attribute codes, selecting relevant attribute codes and relevant method codes from the intelligent contract template to automatically generate a corresponding intelligent contract, further supplementing the lacking individual attribute codes and relevant method codes into the intelligent contract, finally obtaining the required intelligent contract and updating the intelligent contract template by utilizing the intelligent contract;
if the template base does not have related intelligent contract templates, writing corresponding intelligent contracts according to related attribute codes and method codes of the needed intelligent contracts, and adding the corresponding intelligent contract templates to the template base by using the written intelligent contracts and storing the intelligent contract templates in the template base.
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| CN107844710B (en) * | 2017-09-26 | 2020-07-17 | 浙江大学 | Contract generating system and generating method |
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| CN108446115A (en) * | 2018-03-12 | 2018-08-24 | 中国银行股份有限公司 | A kind of method and device of code reuse |
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